Data protecting method, device and system

A technology for data protection and feedback information, applied in electrical digital data processing, redundancy in hardware for data error detection, response error generation, etc. sexual effect
CN103544080AActive Publication Date: 2014-01-29HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2014-01-29

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Abstract

The embodiment of the invention discloses a data protecting method, device and system, and relates to the field of data protection. The reliability of the system for protecting data can be improved. The method comprises the steps that a PCH receives feedback information sent after a CPU completes ADR process; the PCH sends an ADR completion message to an NVDIMM after receiving the feedback information, wherein the ADR completion message is used for indicating the NVDIMM to conduct backup electricity switching and data protection. The data protecting method, device and system are applied to NVDIMM data protection.
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Description

technical field

[0001] The present invention relates to the field of data protection, in particular to a data protection method, device and system. Background technique

[0002] Nowadays, in order to ensure the reliability of data in the storage system, a backup power unit is usually added to the storage system, so as to ensure that the memory data will not be lost when the power supply is abnormal and / or the storage system is abnormal. At the same time, the current mainstream backup point The unit is NVDIMM (Non-Volatile DIMM, non-volatile memory module). The NVDIMM is usually connected to a storage system through a common DIMM (Dual Inline Memory Modules, dual inline memory module) interface when protecting data. Therefore, when the power supply of the storage system is abnormal, the CPLD (Complex Programmable Logic Device, complex programmable logic device) generates an interrupt to the PCH (Platform Controller Hub, integrated south bridge) chip, and triggers the ADR (As...

Claims

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